Analysis

  • max time kernel
    153s
  • max time network
    152s
  • platform
    windows10_x64
  • resource
    win10-en-20211208
  • submitted
    16/12/2021, 08:11

General

  • Target
    896ce73ee53b66a5a69252da31125e61.exe
  • Size 334KB
  • Sample211216-j3aaescbhl
  • SHA256 2ffbcb2173857e2ace323d359ff3004d99ed864e0710d08bd3d11162a25857eb
  • MD5 SHA1 SHA512

Malware Config

Extracted

Family
  • smokeloader

Version
  • 2020

C2
  • http://rcacademy.at/upload/

  • http://e-lanpengeonline.com/upload/

  • http://vjcmvz.cn/upload/

  • http://galala.ru/upload/

  • http://witra.ru/upload/

rc4.i32
rc4.i32

Extracted

Family
  • redline

Botnet
  • ww

C2
  • 45.9.20.168:46257

Signatures

  • RedLine

    RedLine Stealer is a malware family written in C#, first appearing in early 2020.

  • RedLine Payload 2 IoCs
  • SmokeLoader

    Modular backdoor trojan in use since 2014.

  • suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

    suricata: ET MALWARE Terse alphanumeric executable downloader high likelihood of being hostile

  • Downloads MZ/PE file
  • Executes dropped EXE 1 IoCs
  • Deletes itself 1 IoCs
  • Reads user/profile data of web browsers 2 TTPs

    Infostealers often target stored browser data, which can include saved credentials etc.

  • Accesses cryptocurrency files/wallets, possible credential harvesting 2 TTPs
  • Checks installed software on the system 1 TTPs

    Looks up Uninstall key entries in the registry to enumerate software on the system.

  • Checks SCSI registry key(s) 3 TTPs 3 IoCs

    SCSI information is often read in order to detect sandboxing environments.

  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious behavior: GetForegroundWindowSpam 1 IoCs
  • Suspicious behavior: MapViewOfSection 1 IoCs
  • Suspicious use of AdjustPrivilegeToken 5 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\896ce73ee53b66a5a69252da31125e61.exe
    "C:\Users\Admin\AppData\Local\Temp\896ce73ee53b66a5a69252da31125e61.exe"
    1⤵
    • Checks SCSI registry key(s)
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious behavior: MapViewOfSection
    PID:2800
  • C:\Users\Admin\AppData\Local\Temp\120.exe
    C:\Users\Admin\AppData\Local\Temp\120.exe
    1⤵
    • Executes dropped EXE
    • Suspicious use of AdjustPrivilegeToken
    PID:2752

Network

        MITRE ATT&CK Enterprise v6

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        memory/2752-128-0x00000000056C0000-0x00000000056C1000-memory.dmp

        memory/2752-139-0x0000000005B80000-0x0000000005B81000-memory.dmp

        memory/2752-142-0x00000000066C0000-0x00000000066C1000-memory.dmp

        memory/2752-141-0x00000000064F0000-0x00000000064F1000-memory.dmp

        memory/2752-123-0x0000000002450000-0x000000000247E000-memory.dmp

        memory/2752-124-0x0000000004BB0000-0x0000000004BB1000-memory.dmp

        memory/2752-125-0x00000000024E0000-0x000000000250D000-memory.dmp

        memory/2752-126-0x00000000050B0000-0x00000000050B1000-memory.dmp

        memory/2752-127-0x00000000027F0000-0x00000000027F1000-memory.dmp

        memory/2752-140-0x0000000005DB0000-0x0000000005DB1000-memory.dmp

        memory/2752-129-0x0000000005810000-0x0000000005811000-memory.dmp

        memory/2752-131-0x0000000000400000-0x00000000004F1000-memory.dmp

        memory/2752-133-0x0000000002112000-0x0000000002113000-memory.dmp

        memory/2752-130-0x0000000000500000-0x00000000005AE000-memory.dmp

        memory/2752-134-0x0000000002113000-0x0000000002114000-memory.dmp

        memory/2752-135-0x0000000002114000-0x0000000002116000-memory.dmp

        memory/2752-132-0x0000000002110000-0x0000000002111000-memory.dmp

        memory/2752-136-0x0000000005850000-0x0000000005851000-memory.dmp

        memory/2752-137-0x0000000005AC0000-0x0000000005AC1000-memory.dmp

        memory/2752-138-0x0000000005BB0000-0x0000000005BB1000-memory.dmp

        memory/2800-115-0x00000000006C6000-0x00000000006D6000-memory.dmp

        memory/2800-117-0x0000000000400000-0x00000000004D5000-memory.dmp

        memory/2800-116-0x0000000000540000-0x000000000068A000-memory.dmp

        memory/2892-118-0x00000000013C0000-0x00000000013D6000-memory.dmp